pearce



(No Model.)

F. I. PBARGB. SHIPPER DEVICE P08 REVEL FRIGTIONVDRIVING WHEELS,

No. 812,890. f Patented Febpzzl, 1888.

HG2. F183- IlrirTnn STaTns PATENT Tricia,

FRANK I. IEABCE, OF CHICAGO, ILLINOIS, ASSIGNOR 'IO THE LINK BELIMACHINERY COMPANY, OF SAME PLACE.

SHIPPER DEVICE FOR BEVEL FRICTION DRIVING-WHEELS.

SPECIFICATION forming part of Letters Patent No. 312,890, dated February24,1885,

Application filed December 18, 1884. (No model.)

To all whom tmay concern:

Be it known that I, FRANK I. Pinnen, of Chicago, in the county of Cookand State of Illinois, haveinvented a new and useful Shipper Device forBevel Friction Driving-Vheels;

and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making part of this application.

My invention relates to a novel and useful contrivance for shipping intoand out of enA gagernent the surfaces of bevel friction-surfacedrive-wheels. Previous to my invention various means have been employedfor this purpose, the most common among which is that in the use ofwhich either the driver or the bevelwheel toA be driven is movedslightly substantially in a plane coincident with that in which thewheel lies.

I propose to adopt a principle of construction and mode of operation inthe means ernployed for shipping` into and out of working contact thebevel surfaces of the wheels, by which the wheel to be moved slightlyshall be moved lengthwise upon the shaft on which it is mounted, and bywhich it is driven, or which it drives, as the case may be,) and to thisend and object my invention may be said to consist in means,substantially such as hereinafter described, and more particularlypointed out in the claims of this application, by which a beveled facefriction-pulley may be thrown into and out of engagement by moving itslightly upon the shaft upon which it may be mounted.

To enable those skilled in the art to which my invention relates to makeand use the saine, I will now proceed to describe my iin' provedcontrivance, referring by letters to the accompanying drawings, whichform part of this specification, and in which I have shown my inventioncarried out in that forin in which I have so far successfully practicedit.

In the drawings, Figure l is a perspective view showing the box,shaft,shipperhandle, box-bushing, and helical slot and push-pin of ashipper contrivance made according to my invention. Fig. 2 is a top viewof the same with the addition of the bevel -facc friction-pulley mountedon a shaft shown in Fig. l. Fig. 3 is a sectional view showing all theparts seen at Fig. 2, (with the exception of a portion of thebearing-box which is removedu) and also the second frictionpulleydesigned to be thrown into and out of engageinentwith the pulley shownat Fig. 2.

In the several figures the same part will be found designated by thesame letter of reference.

A represents a shafaon which is mounteda 6o bevel friction-pulley, B,the said pulley being free to move more or less upon said shaft in thedirection of the length of the latter, but forced to rotate with saidshaft by reason of a spline in the eye of the pulley, with which engagesin a well-known manner the feather c of the shaft.

Immediately :in the rear of said pulley Bis mounted, on a shaft, A, ashort cylinder or bushing, d, within which the shaft A turns 7o freely,and which is formed or provided near that end which abnts against theback of the pulley B with a collar, c, designed to form a stop againstone side of the box f,within which said bushing d is arranged, as shown,and 7: within which said bushing d is free to turn to v a limitedextent, as and for the purpose to be presently explained.

On the projecting end of the bushing d, opposite to that end which hasthe collar e, is 8o securely fastened one end of an ordinaryshipper-handle, G, while from near the middle lengthwise of the exteriorof said bushing d projects radially asmall pin or lug, `adapted to playfreely (whenever the bushing d be turned on shaft A) within a helicalslot, i, made through the upper portion of the bear ing-box or pillow-block f, all as clearly shown.

H is another bevel-face friction-pulley adapted to run in contact, whendesired, with the 9o pulley B, and keyed fast onto the end of anordinary shaft, L, which is arranged in the same plane with the shaft A,but runs in a direction transverse to the line ofsaid shaft A.

The operation of the devices thus far de- 95 scribed, and arrangedtogether as shown in the drawings, may be thus explained: Supposing thetwo wheels B and H to be out of contact, as shown at Fig. 3, and the ping to be located (about as shown at Fig. l) near roo that end of thehelical sloti which is farthest from the hack side of the wheel B, inorder to Shall throw the wheels B and H into operative engagement,so'that the one which may be in constant motion shall operate to drivethe other one, it is only necessary for the operar tive to take hold ofthe shipper-handle G, and, moving it in the direction indicated by thearrow at Fig. l, cause the bushing d to partially rotate within the boxfand upon the shaft A, on which said bushing is mounted, such partialrotation of said bushing causing the pin or lug g thereof to be so actedupon by the helical slot l as to move the bushing endwise on the shaft Aand within the boxf in the direction indicated by the arrow at Fig. 3.This endwise movement of said bushing d forces the pulley B to slidemore or less on the shaft A, to which it is splined, and brings itsbeveled working-face into contact with the bevel-face of the pulley h,the forcibleness of said contact between the faces of the two pulleys Band H being in proportion to the extent to which the shipper-handle Gmay bevibrated, or, in other words, to the extent to which the pi n gmay be forced in the desired direction by the action ofthe helical slott'.

Uf course the operation of the pulleys and shipper devices may betransposed from that shown at Fig. 3.

The sizes, proportions, and detail construction of the several parts maybe varied as expediency or the judgment of the skilled mcchanic maydictate. I therefore wish it to be understood that I do not considermyinvention limited to either the sizes, proportions, or the exactdetail constructions of the several parts of the contrivance shown; but,Having so explained the construction and operation of my improvedshipper contrivance that those skilled in the art can make and use myinvention, what I claim as new, and desire to secure by Letters Patent,is-

In combination with a bevel friction-pulley mounted to slide on a shaftand adapted for engagement and disengagement with a similar pulley, arotating and sliding bushing or collar provided with a pin or lugengaging with an inclined or helical groove in the journal-box in which,said rotating and sliding bushing is arranged, the combination beingsuch, as described, that by a partial rotation of said bushing throughthe medium of an ordinary lever or handle the said pin or lug, actingwithin an inclined slot, will cause said bushing to simultaneously movelongitudinally and force the bevel 'rictionpulley into engagementwiththe pulley to be driven, substantially as set forth.

In witness whereofl have hereunto set my hand this 25th day of November,1884.

FRANK I. PEARCE. e In presence of;-

Gno. E. JoHNsoN, Jr., -WILL. P. SrssoN.

